Prime Minister John Key is ruling out any further sales of state assets, once Genesis Energy is partially sold.
So far, Mighty River Power and Meridian Energy and Air New Zealand have been partially sold, with the Government retaining at least a 51 percent share.
State-owned coal company Solid Energy was also in the original plan, but withdrawn due to financial problems.
Mr Key told reporters on Monday the Government still believes that partially selling energy companies was the right move and will help to improve their future performance.
However, he said there are no more state-owned companies that would make sense to partially sell, with New Zealand Post facing declining business and Transpower operating as a monopoly.
"The truth is that there aren't a lot of other assets that would fit in the category where they would be either appealing to take to the market or of a size that would warrant a further programme. Or they sit in the category where they are very large, like Transpower, but are a monopoly asset and so aren't suited I think."
Mr Key said the Genesis float would happen in the next few months and Finance Minister Bill English would announce further details on Wednesday.